Package core_extended

Failed to find a solution:

no platform:
2024-01-29 14:51.47 [INFO] Solving for ocaml-base-compiler, ocaml,
                           core_extended using opam_repository_commit 251c5edf2ecdd2541c324dacb931c3606ee71eeb

2024-01-29 14:51.53 [INFO] base: eliminated all possibilities in 2.84 s

2024-01-29 14:51.53 [INFO] = base =

2024-01-29 14:51.53 [INFO] Can't find all required versions.
Selected: base-ocamlbuild.base camlp4.4.02.0-1modular-implicits conf-which.1
          ocaml-config.3 ocamlbuild.0 ocamlfind.1.9.6 ounit.2.2.7
          core_extended&ocaml&ocaml-base-compiler ocaml-base-compiler
          ocaml-base-compiler
- async -> async.110.01.00
    textutils 109.53.03 requires >= 109.53.00 & <= 110.01.00
- async_extra -> async_extra.110.01.00
    async 110.01.00 requires = 110.01.00
- async_kernel -> async_kernel.110.01.00
    async 110.01.00 requires = 110.01.00
- async_unix -> async_unix.110.01.00
    async 110.01.00 requires = 110.01.00
- bin_prot -> bin_prot.109.53.03
    async_extra 110.01.00 requires >= 109.53.00 & <= 109.53.03
- comparelib -> comparelib.109.60.00
    async_unix 110.01.00 requires = 109.60.00
- core -> core.110.01.00
    async_extra 110.01.00 requires = 110.01.00
- core_extended -> core_extended.110.01.00
    User requested = 110.01.00
- core_kernel -> (problem)
    core 110.01.00 requires = 110.01.00
    Rejected candidates:
      core_kernel.v0.16.0: Incompatible with restriction: = 110.01.00
      core_kernel.v0.15.0: Incompatible with restriction: = 110.01.00
      core_kernel.v0.14.2: Incompatible with restriction: = 110.01.00
      core_kernel.v0.14.1: Incompatible with restriction: = 110.01.00
      core_kernel.v0.14.0: Incompatible with restriction: = 110.01.00
      ...
- custom_printf -> (problem)
    core 110.01.00 requires = 109.60.00
    Rejected candidates:
      custom_printf.113.00.00: Incompatible with restriction: = 109.60.00
      custom_printf.112.24.00: Incompatible with restriction: = 109.60.00
      custom_printf.112.17.00: Incompatible with restriction: = 109.60.00
      custom_printf.112.06.00: Incompatible with restriction: = 109.60.00
      custom_printf.112.01.00: Incompatible with restriction: = 109.60.00
      ...
- fieldslib -> fieldslib.109.20.03
    async_extra 110.01.00 requires >= 109.20.00 & <= 109.20.03
- herelib -> herelib.109.35.02
    async_kernel 110.01.00 requires >= 109.35.00 & <= 109.35.02
- ocaml -> ocaml.4.02.4
    User requested <= 5.1.0
    async 110.01.00 requires >= 4.00.0 & < 4.03
- ocaml-base-compiler -> (problem)
    User requested >= 4.04.1
    Rejected candidates:
      ocaml-base-compiler.5.1.1: Requires ocaml = 5.1.1
      ocaml-base-compiler.5.1.1~rc1: Requires ocaml = 5.1.1
      ocaml-base-compiler.5.1.0: Requires ocaml = 5.1.0
      ocaml-base-compiler.5.1.0~rc3: Requires ocaml = 5.1.0
      ocaml-base-compiler.5.1.0~rc2: Requires ocaml = 5.1.0
      ...
- ocaml-variants -> (problem)
    camlp4 4.02.0-1modular-implicits requires = 4.02.0+modular-implicits | = 4.02.1+modular-implicits-ber
    Rejected candidates:
      ocaml-variants.5.3.0+trunk: Incompatible with restriction: = 4.02.0+modular-implicits | = 4.02.1+modular-implicits-ber
      ocaml-variants.5.2.0+trunk: Incompatible with restriction: = 4.02.0+modular-implicits | = 4.02.1+modular-implicits-ber
      ocaml-variants.5.1.2+trunk: Incompatible with restriction: = 4.02.0+modular-implicits | = 4.02.1+modular-implicits-ber
      ocaml-variants.5.1.1+tsan: Incompatible with restriction: = 4.02.0+modular-implicits | = 4.02.1+modular-implicits-ber
      ocaml-variants.5.1.1+options: Incompatible with restriction: = 4.02.0+modular-implicits | = 4.02.1+modular-implicits-ber
      ...
- ounit2 -> (problem)
    ounit 2.2.7 requires = 2.2.7
    Rejected candidates:
      ounit2.2.2.7: Requires ocaml >= 4.04.0
      ounit2.2.2.6: Incompatible with restriction: = 2.2.7
      ounit2.2.2.5: Incompatible with restriction: = 2.2.7
      ounit2.2.2.4: Incompatible with restriction: = 2.2.7
      ounit2.2.2.3: Incompatible with restriction: = 2.2.7
      ...
- pa_bench -> pa_bench.109.55.02
    core 110.01.00 requires >= 109.55.00 & <= 109.55.02
- pa_ounit -> pa_ounit.109.53.02
    async_extra 110.01.00 requires >= 109.53.00 & <= 109.53.02
- pa_test -> pa_test.110.01.00
    async_kernel 110.01.00 requires = 110.01.00
- pipebang -> pipebang.110.01.00
    async_extra 110.01.00 requires = 110.01.00
- re2 -> re2.109.55.03
    core_extended 110.01.00 requires >= 109.55.00 & <= 109.55.04
- sexplib -> sexplib.110.01.00
    async_extra 110.01.00 requires = 110.01.00
- textutils -> textutils.109.53.03
    core_extended 110.01.00 requires >= 109.53.00 & <= 109.53.03
- type_conv -> type_conv.109.60.01
    bin_prot 109.53.03 requires >= 109.53.00 & <= 109.60.01
- variantslib -> variantslib.109.15.03
    core 110.01.00 requires >= 109.15.00 & <= 109.15.03